{
  "annotation_id": "58d00dd4-c6f5-477a-be01-0ae1b200d15e",
  "date_created": "2026-03-02T18:02:16.805000Z",
  "date_modified": "2026-03-02T18:02:16.805000Z",
  "file_hash": "1fc7d5eee8feb49aafb0b25d730ca4b911db4fcae35046995eb6ba77b45647cb",
  "private": false,
  "record": {
    "abstract": "We present a direct algebraic decoupling approach to generate arbitrary\nsingle-qubit operations in the presence of a constant interaction by applying\nlocal control signals. To overcome the difficulty of undesirable entanglement\ngenerated by the untunable interaction, we derive local control fields that are\ndesigned to both drive the qubit systems back to unentangled states at the end\nof the time interval over which the desired single-qubit operation is\ncompleted. This approach is seen to be particularly relevant for the physical\nimplementation of solid-state quantum computation and for the design of\nlow-power pulses in NMR.",
    "arxiv_id": "quant-ph/0504137",
    "authors": [
      "Jun Zhang",
      "K. Birgitta Whaley"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.022306",
    "journal_ref": "Phys. Rev. A 73, 022306 (2006)",
    "title": "Optimal generation of single-qubit operation from an always-on   interaction by algebraic decoupling",
    "url": "https://arxiv.org/abs/quant-ph/0504137"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f081e517-b902-47f6-b896-5d97b1beefa0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}